About the Authors

Johan W.S. Vlaeyen, PhD, is a professor in the Research Group Health Psychology, Faculty of Psychology and Educational Sciences, University of Leuven, Belgium, and at the Department of Clinical Psychological Science, Faculty of Psychology and Neuroscience, Maastricht University, The Netherlands. He received an honorary doctorate from Örebro University, Sweden. His research interests include the affective and motivational mechanisms of task interference due to persistent pain. Vlaeyen and his team developed exposure-based therapy for patients with chronic pain. They have conducted randomized controlled trials as well as replicated single-case experiments to evaluate the effects of behavioral interventions in chronic pain.
Stephen J. Morley, MPhil, PhD, is a professor of clinical psychology and director of the clinical psychology training program at the Institute of Health Sciences, University of Leeds, United Kingdom. He is also a practicing clinical psychologist at St James' University Hospital, Leeds. His research interests include the eff ects of pain on self-identity and the development of clinical methods for evaluating the effectiveness of psychological treatments for chronic pain. He is section editor of the European Journal of Pain.
Steven J. Linton, PhD, is professor of clinical psychology at the School of Law, Psychology, and Social Work and research director of the Center for Health and Medical Psychology (CHAMP) at Örebro University, Örebro, Sweden. His research interests include the role of psychological factors in sleep disorders, ways to match psychological interventions to the specifi c needs of patients with chronic pain, and behavioral therapies for restoring function and quality of life in patients with disability from persistent musculoskeletal pain.
Katja Boersma, PhD, is associate professor at the School of Law, Psychology, and Social Work and a researcher at the Center for Health and Medical Psychology, Örebro University, Örebro, Sweden. Her research interests include biopsychosocial aspects of pain, including fear-avoidance and catastrophizing.
Jeroen de Jong, PhD, is a movement scientist, behavior therapist, and researcher at the Department of Rehabilitation, Maastricht University Hospital, Maastricht, The Netherlands. Along with Vlaeyen, de Jong is recognized as one of the founders of graded exposure in vivo therapy in chronic pain.